I launched CS first and it still OS 5-0 but i just found noticed that i was using 105 so that may alternate the results a bit. If you bank libra hard enough it can get a KO but it happened once out of 5 times. (That was different testing not the 5-0 OS)

redid tests
i still dont understand how u got it
105 could have done it, could have gave it the inch to slide over BD145 and smash down
who knows

MF-H Libra BD145MF vs Basalt Kerbecs 100CS (Calm, oriented )
Alternate shots ( beys took turns on being shot, different shoots (straight shots and banks ON BOTH BEYS)
Win Rates

Spoiler (Click to View)

1.LOS
2.LOS
3.LOS
4.LKO
5.LOS
6.LOS
7.LOS
8.LOS
9.LOS
10.LKO
11.LOS
12.LOS
13.LOS
14.LOS
15.LKO
16.LKO
17.LKO
18.LOS
19.LOS
20.BKOS

Libra= 19/20
BK= 1/20
Libra Win Percentage = 95%

this was very close
however in the end bd145 still smashed down basalt
again KO'S could have happend cuz of the no MF-H
Basalt won when it scrapped BD145 before attacking a bit